Monte Circeo

Monte Circeo, also known as Cape Circeo, is a mountain that marks the limit of the Pontine Marshes 100 kilometers southwest of Rome, Italy.

History
Otherwise known as Cape Circeo, Monte Circeo now exists as a promontory marking the southwestern limit of the Pontine Marshes about 100 kilometres southwest of Rome. On the east ridge of the promontory, geologists found remains of ancient fortifications. It was used in 1503 to manufacture tanks that Leonardo da Vinci built, and it was the location of the first tank battle, in which Ezio Auditore da Firenze led a prisoner revolt and used a prototype tank to destroy other tanks and the factory before blowing up the prototype.